typescript-strict-mode

To eliminate unsafe any usage in TypeScript, enable the no-explicit-any ESLint rule and adopt type-safe patterns. Replace any with unknown for dynamic data, apply generics for reusable components, and use type guards for runtime validation.

Use unknown instead of any in strict TypeScript mode when handling truly unknown external data. The unknown type forces explicit runtime type checking via type guards before usage, ensuring type safety and preventing uncaught runtime errors.

Enforce strict TypeScript rules during code reviews and onboarding by applying strict mode configurations project-wide. Guide developers to leverage Record types, generics, and type guards, rejecting unsafe patterns early to maintain a consistent and safer codebase.

The best way to migrate a TypeScript project to strict mode is to incrementally apply strict type safety rules. Start by enabling no-explicit-any via ESLint, then refactor dynamic types to unknown and implement type guards to resolve compiler errors safely.

Yes, the ESLint no-explicit-any rule works seamlessly with generics and type guards. These strict TypeScript patterns provide the type-safe alternatives needed to satisfy the linter, allowing you to model dynamic data safely without disabling the rule.

Strict TypeScript mode requires type guards for unknown data because the unknown type prevents direct property access without validation. Type guards perform runtime checks that narrow the type, ensuring safe data handling and eliminating unsafe any casting.